<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>博客列表</title>
    <link rel="stylesheet" href="css/list.css">
    <link rel="stylesheet" href="css/blog_list.css">
    <script src="js/jquery.min.js"></script>

    <style>
        
        .nav{
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 50px;
        }
        .container{
            padding-top: 80px;
            height: auto;
        }
        .container-right{
            width: auto;
        }
        .blog-pagnation-wrapper{
            height: 40px;
            margin: 16px 0;
            text-align: center;
        }
        .blog-pagnation-item{
            display: inline-block;
            padding: 8px;
            border: 1px solid #d0d0d5;
            color: #333;
        }
        .blog-pagnation-item:hover{
            background: #4e4eeb;
            color: #fff;
        }
        .blog-pagnation-item.actvie{
            background: #4e4eeb;
            color: #fff;
        }

    </style>
</head>

<body>
    <!-- 导航栏 -->
    <div class="nav">
        <img src="img/logo2.jpg" alt="">
        <span class="title">我的博客系统</span>
        <!-- 用来占据中间位置 -->
        <span class="spacer"></span>
        <a href="myblog_list.html">个人主页</a>
        <!-- <a href="#">注销</a> -->
    </div>
    <!-- 版心 -->
    <div class="container">
        <!-- 右侧内容详情 -->
        <div class="container-right" style="width: 100%;">
            <div id="artListDiv">
            </div>
            
            <hr>
            <div class="blog-pagnation-wrapper">
                <button onclick="goFirstPage()" class="blog-pagnation-item">首页</button> 
                <button onclick="goBeforePage()" class="blog-pagnation-item">上一页</button>  
                <button onclick="goNextPage()" class="blog-pagnation-item">下一页</button>
                <button onclick="goLastPage()" class="blog-pagnation-item">末页</button>
            </div>
        </div>
    </div>
    
    <script>
        
        // 当前页码
        var pindex = 1;
        // 每页显示条数
        var psize = 2;
        // 最大页数
        var pcount = 1;
        //获取当前 url 参数中的页码
        function getUrlValue(key){
                // 得到参数 ex: ?id=1&v=2
                var params = location.search;
                if(params.length > 1){

                    // 截取问号以后的参数
                    params = location.search.substring(1);

                    // 分割参数
                    var paramArr = params.split("&");
                    for(var i = 0; i < paramArr.length; i++){
                        var kv = paramArr[i].split("=");
                        if(kv[0] == key){
                            // 得到需要的参数
                            return kv[1];
                        }
                    }
                }
                return "";
            }
        pindex = (getUrlValue("pindex")==""?1:getUrlValue("pindex"));
        
        // 查询后端接口得到当前页面的数据，进行展示
        function initPage(){
            jQuery.ajax({
                url:"/art/listbypage",
                type:"POST",
                data:{"pindex":pindex,"psize":psize},
                success:function(result){
                    if(result != null && result.code == 200 && result.data.list.length>0){
                        var artListHtml = "";
                        for(var i = 0; i < result.data.list.length; i++){
                            var articleinfo = result.data.list[i];
                            artListHtml += '<div class="blog">';
                            artListHtml += '<div class="title">'+articleinfo.title+'</div>';
                            artListHtml += '<div class="date">'+articleinfo.updatetime+'</div>';
                            artListHtml += '<div class="desc">'+articleinfo.content+'</div>';
                            artListHtml += '<a href="blog_content.html?id='+articleinfo.id+'" class="detail">查看全文 &gt;&gt;</a>';
                            artListHtml += '</div>';
                        }
                    }
                    jQuery("#artListDiv").html(artListHtml);
                    pcount = result.data.pcount;
                }
            });
        }
        initPage();

        // 返回首页
        function goFirstPage(){
            if(pindex <= 1){
                alert("当前已经在首页了");
                return;
            }
            location.href = "blog_list.html";
        }

        // 上一页
        function goBeforePage(){
            if(pindex <= 1){
                alert("当前已经在第一页了");
                return;
            }
            pindex = parseInt(pindex) - 1;
            location.href = "blog_list.html?pindex="+pindex;
        }

        // 下一页
        function goNextPage(){
            if(pindex >= parseInt(pcount)){
                alert("已经没有更多啦");
                return;
            }
            pindex = parseInt(pindex) + 1;
            location.href = "blog_list.html?pindex="+pindex;
        }

        // 去末页
        function goLastPage(){
            if(pindex >= parseInt(pcount)){
                alert("已经是最后一页啦");
                return;
            }
            
            location.href = "blog_list.html?pindex="+pcount;
        }
    </script>
</body>
</html>